Browse Prior Art Database

AUTOMATIC RECONNECT OF AN INTERCONNECT CALL AFTER WIDE-TO-SITE TRUNKING TRANSITION

IP.com Disclosure Number: IPCOM000007665D
Original Publication Date: 1996-May-01
Included in the Prior Art Database: 2002-Apr-12
Document File: 1 page(s) / 87K

Publishing Venue

Motorola

Related People

Michael L. Wirtjes: AUTHOR [+3]

Abstract

In current SmartZone systems, with low tier or high tier telephone interconnect hmctionality, a tran- sition from Wide area to Site trunking will termi- nate a telephone interconnect call.

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MOFOROLA Technical Developments

8

AUTOMATIC RECONNECT OF AN INTERCONNECT CALL AFTER WIDE-TO-SITE TRUNKING TRANSITION

by Michael L. Wirtjes, Nathalie Berthelot and Hemant Pate1

SYSTEM BACKGROUND:

  In current SmartZone systems, with low tier or high tier telephone interconnect hmctionality, a tran- sition from Wide area to Site trunking will termi- nate a telephone interconnect call.

  For systems with low tier telephone intercon- nect functionality, each remote site may have one or more phone interconnect boards (PIB) to support interconnect calls. In such a system, when a subscriber requests an interconnect call, the Zone Controller allocates a PIB on a base station at a remote site to support the requested call. Once a PIB is allocated, the Zone Controller sends an Out- bound Signalling Word (OSW) to instruct the subscriber to operate on the communication chan- nel associated with the PIB. The subscriber then transmits the phone number ofthe called party and begins the call. During the interconnect call, the Zone Controller controls the call and performs all call processing. If the link between the Zone Con- troller and the remote site breaks, the interconnect call will be terminated when the remote site switches from Wide area to Site trunking, thereby requiring the subscriber to re-request the interconnect call.

  For systems with high tier telephone intercon- nect functionality, each remote site uses an MBX that is collocated with the Zone Controller to sup- port telephone interconnect calls. When a subscriber requests an interconnect call, the Zone Controller coordinates the interfacing of a phone line via the MBX to a base station at the remote site to support the call. Similar to the low tier interconnect situa- tion, the interconnect call will be dropped if the link between the Zone Controller and the remote base site breaks.

SOLUTION:

The proposed solution provides automatic call back after a transition from Wide area to Site

trunking. As a result, the ongoing telephone inter- connect call will be automaticall...